Hey Woody,
I realize this thread is about 6 months old... but you should maybe check these guys out... you too HDDP.
AutoEnginuity
Their scan tool is just a scan tool... but it supports most if not all ODBII and CAN stuff out there and comes with their 'SpeedTracer' software for doing on the drive dyno data pulls.
I may get their basic kit just for kicks... as it's pretty cheap.